Contact Us
Part D - Contact Us
Primary Mailing Address P.O. Box 266380
Weston, FL 33326
Enrollment
8AM to 8PM, 7 Days a Week

Our automated phone system may answer your call during weekends and federal holidays from April 1 - Sept. 30.
(844) 368-8739
TTY 711
Enrollment Fax Number

All Other Inquiries

Pharmacy Assistance
(800) 784-1580

(855) 540-4744
TTY 711

(855) 540-4744
TTY 711
Medication Therapy Management (MTM) OptumRx MTM
Clinical Services Center
Phone: (866) 352-5305
Grievance Address and Phone Number OptumRx
Attn: 
Part D Grievances
P.O. Box 3410
Lisle, IL 60532
Phone: (855) 540-4744
(TTY 711)
Fax: (866) 235-3171
Coverage Determination Address and Fax Number Prior Authorization Department
P.O. Box 25183
Santa Ana, CA 92799
Fax: (800) 572-0531
Appeals Address and Fax Number Prior Authorization Department
Attn: Appeals Coordinator
P.O. Box 25184
Santa Ana, CA 92799
Fax: (877) 239-4565
Manual Claims Address and Phone Number Medicare Part D Manual Claims
P.O. Box 29022
Hot Springs, AR 71903
Phone: (855) 540-4744
TTY 711
Return Address P.O. Box 266380
Weston, FL 33326
Enrollment Address P.O. Box 266380
Weston, FL 33326
Payment/ Remittance Members Health Insurance 
PO Box 953668
St. Louis, MO 63195 – 3668